Citizen Systems pmn - page 91

iDP3410 User's Manual
77 CITIZEN
* ETX-STX Mode
STX/ETX Mode Start
Sends ENQ
Receives Status
Data Buffer Empty ?
Sends STX
Odd Parity Check ?
Sets Test Byte To
FFH Sets Test Byte To
00
Exclusive ORs Test Byte
and Sent Data Test By te
Sends Data to Printer
Last Data in 1 Block ?
1
1
NO
YES
YES
NO
YES
Receives Status
Receives Check Byte
Sends ETX
STX-ETX
Mode End
NO
YES
Status Error ?
Sends ENQ
Check Byte
= Test B
y
te ?
YES
NO
YES
(Print) Sends CAN
STX-ETX Mode Data
Block Ready to Send ?
NO
RET
NO